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Concept explainers
(a)
To find:
The passwords are possible if characters are letters that can be repeated and no character can be repeated.
(a)
![Check Mark](/static/check-mark.png)
Answer to Problem 19E
Explanation of Solution
Given:
Total character
Concept used:
Number of possible password without character repetition is solved with permutation formula
Number of possible password with character repetition is solved with permutation formula
Calculation:
Using permutation formula for maximum combinations
The solution is
(b)
To explain:
The type of password is more secure.
(b)
![Check Mark](/static/check-mark.png)
Answer to Problem 19E
Explanation of Solution
Given:
Total character
Concept used:
Number of possible password without character repetition is solved with permutation formula
Number of possible password with character repetition is solved with permutation formula
Calculation:
Number of possible password with character repetition is solved with permutation formula
Using the above formula
Chapter 0 Solutions
Glencoe Algebra 2 Student Edition C2014
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